To address your question; I believe the reason there is so much focus on automatic and semi-automatic firearms and large capacity magazines is because their potential for mass carnage is exponentially greater than that of handguns.

Do you know what "semi-automatic" means? The above indicates you might be misataken. I get the impression that a lot of people think it means something other than what it actually means...I'm just not 100% sure what that is. I'm sure you'll look it up now, but can you tell me what you thought it meant while writing the above? I'm legitimately curioius and promise not to be a pedantic jerk about your answer.